Moderate to heavy rainfall amounts were reported over two days after a plume of subtropical air moved into Arizona. The heaviest amounts occurred over the higher terrain generally east and north of Phoenix, resulting in flooded roads and other low-lying areas. About 3 inches fell at McDowell Mountain Park near Fountain Hills. The peak release from Granite Reef Dam into the Salt River was about 22,000 cfs.

Event Narrative

A railroad bridge over the Gilson Wash collapsed which resulted in a train derailment. Considerable damage resulted, but no injuries were reported.